Speed-Pro File-Fit Piston Ring Set - Plasma-Moly - 4.165" Bore - 1/16" - 1/16" - 3/16" Thickness - 8-Cylinder - Set of 8 BAT-GMR2 Pontiac: GTO 64 - 66

Pontiac: GTO 64 - 66 6

1982-1998 GMC K1500

glass sight window for easy

Available with and without nutwasher to fit all helmets

3/4" embossed turbulators which maximize heat transfer while also minimizing pressure drop

Speed-Pro File-Fit Piston Ring Set - Plasma-Moly - 4.165" Bore - 1/16" - 1/16" - 3/16" Thickness - 8-Cylinder - Set of 8 BAT-GMR2 Pontiac: GTO 64 - 66Speed Pro designs and engineers pistons to meet the most demanding street performance and racing conditions. In combination, we draw upon more than 100 years of Speed Pro engine mastery to enhance the piston ring and its seal. Our Speed Pro brand is recognized for being a winner in every form of racing, and is the proven horsepower leader in oval track and drag racing. Hell Fire Rings: Speed Pro Hell Fire rings, manufactured from a specially hardened